A Phase Offset Selective Mapping Technique for PAPR Reduction in MIMO-UFMC
A. Devi, M. Julie Therese, P. Dharanyadevi, I. Sruthi
Abstract
A new multi-carrier system, called Universal-Filtered Multi-Carrier (UFMC), is a developing waveform that may be used in 5G communications because it eliminates the inter-symbol and inter-carrier interference (ISI/ICI) that is problematic for other multi-carrier systems. Although the UFMC suffers from the issue of PAPR, which causes nonlinear distortion in high-power amplifiers, and which thus impedes performance. To address the PAPR issue in UFMC, the P-SLM method was used to decrease PAPR without impacting bit error rate (BER). The proposed work plan is divided into two phases. Differences in the PAPR between UFMC and Orthogonal Multiplexing Division (OFDM) waveforms are examined in the first phase. A new P-SLM method is introduced for lowering PAPR in UFMC systems in the second phase. A simulation of the suggested solution model is performed using MATLAB software. Additionally, the test results and analytical findings demonstrate that the suggested method provides a considerable decrease in PAPR without compromising BER in comparison to the traditional SLM-OFDM system. The suggested strategy uses an adaptive algorithm to optimize the weighting factors of the active user to increase the overall signal-to-noise ratio (SNR) performance of the multi-carrier system.